High speed connector assembly, receptacle connector and plug connector

Abstract

A high speed connector assembly is disclosed in this invention, including a receptacle connector and a plug connector. Each receptacle terminal of the receptacle connector disposes a first L-type contact piece, and each plug terminal of the plug connector disposes a second L-type contact piece. When the receptacle connector and the plug connector are electrically engaged, an extension section of the first L-type contact piece is pressed on a straight part of the second L-type contact piece, and an extension part of the second L-type contact piece is pressed on a straight section of the first L-type contact piece. So this engagement can form a double-contacts structure to restrain the short pile effect and reduce the crosstalk and loss at high speed signal transmission. A receptacle connector and a plug connector are also disclosed in this invention.

What is claimed is: 
     
       1. A high speed connector assembly, which comprises:
 a receptacle connector including at least an insulating cover and multiple terminal modules fixed in the insulating cover and arranged in parallel; each terminal module including an insulating frame and a terminal group retained in the insulating frame; the terminal group including a plurality of receptacle terminals, each of which has a main plate located in a first vertical plane, a first L-type contact piece extending forward from one end of the main plate, and a lower mounting portion extending downward from the other end of the main plate; the first L-type contact piece having a straight section and an extension section; the straight section being located in the first vertical plane, being connected with the main plate and horizontally extending forward; and the extension section being perpendicular to the first vertical plane, being formed by bending one edge of the straight section and being located near the front of the straight section; and 
 a plug connector including a plug housing and multiple rows of plug terminals mounted in the plug housing; each plug terminal having a second L-type contact piece and a mounting part connected with the second L-type contact piece; the second L-type contact piece having a straight part located in a second vertical plane and an extension part being perpendicular to the second vertical plane and formed by bending one edge of the straight part; wherein the extension part is located near the top of the straight part; 
 wherein the second vertical plane is parallel to the first vertical plane; 
 when the receptacle connector and the plug connector being electrically engaged with each other, the extension section of the first L-type contact piece being pressed on the straight part of the second L-type contact piece to form the electrical connection between the receptacle and plug terminals; and the extension part of the second L-type contact piece being pressed on the straight section of the first L-type contact piece to form the electrical connection. 
 
     
     
       2. The high speed connector assembly as claimed in  claim 1 , wherein the first L-type contact piece further has a receptacle-guiding section formed by bending the front of the straight section along the direction away from the extension section; the extension section extends toward the plug terminal, but the receptacle-guiding section extends away from the plug terminal; and
 the second L-type contact piece further has a plug-guiding part formed by bending the top of the straight part along the direction away from the extension part; the extension part extends toward the receptacle terminal, but the plug-guiding part extends away from the receptacle terminal. 
 
     
     
       3. The high speed connector assembly as claimed in  claim 1 , wherein the straight section of the receptacle terminal has at least a wide side located in the first vertical plane, and the extension section is formed by perpendicularly bending one edge of the wide side; and
 the straight part of the plug terminal has at least a wide surface located in the second vertical plane, and the extension part is formed by perpendicularly bending one edge of the wide surface; 
 when the receptacle connector and the plug connector are engaged with each other, the extension section of the first L-type contact piece can contact with the wide surface of the second L-type contact piece to form the electrical connection; and the extension part of the second L-type contact piece can contact with the wide side of the first L-type contact piece to form the electrical connection. 
 
     
     
       4. The high speed connector assembly as claimed in  claim 1 , wherein the main plate is L type, the lower mounting portion is located in the first vertical plane, and the mounting part is located in the second vertical plane. 
     
     
       5. The high speed connector assembly as claimed in  claim 1 , wherein the receptacle terminals of each terminal group include multiple pairs of differential signal receptacle terminals and multiple grounding receptacle terminals; there are two grounding receptacle terminals respectively arranged on two sides of each pair of differential signal receptacle terminals; each pair of differential signal receptacle terminals includes two differential signal receptacle terminals, the first L-type contact pieces of which are symmetrical; and
 each row of plug terminals includes multiple pairs of differential signal plug terminals and multiple grounding plug terminals; there are two grounding plug terminals respectively arranged on two sides of each pair of differential signal plug terminals; each pair of differential signal plug terminals includes two differential signal plug terminals, the second L-type contact pieces of which are symmetrical. 
 
     
     
       6. The high speed connector assembly as claimed in  claim 1 , wherein the plug housing includes a base and two sidewalls standing on two sides of the base; and the base forms multiple rows of insertion holes to be used to hold the corresponding plug terminals. 
     
     
       7. A receptacle connector, which comprises:
 an insulating cover; and 
 multiple terminal modules fixed in the insulating cover and arranged in parallel; each terminal module including an insulating frame and a terminal group retained in the insulating frame; the terminal group including a plurality of receptacle terminals, at least one of which has a main plate located in a first vertical plane, a first L-type contact piece extending forward from one end of the main plate, and a lower mounting portion extending downward from the other end of the main plate; the first L-type contact piece having a straight section and an extension section; the straight section being located in the first vertical plane, being connected with the main plate and horizontally extending forward; and the extension section being perpendicular to the first vertical plane, being formed by bending one edge of the straight section and being located near the front of the straight section. 
 
     
     
       8. The receptacle connector as claimed in  claim 7 , wherein the first L-type contact piece further has a receptacle-guiding section formed by bending the front of the straight section along the direction away from the extension section;
 the straight section has at least a wide side located in the first vertical plane, and the extension section is formed by perpendicularly bending one edge of the wide side. 
 
     
     
       9. The receptacle connector as claimed in  claim 7 , wherein the main plate is L type, and the lower mounting portion is located in the first vertical plane. 
     
     
       10. A plug connector, which comprises:
 a plug housing including a base and two sidewalls standing on two sides of the base; the base forming multiple rows of insertion holes; and 
 multiple rows of plug terminals being mounted in the plug housing and held in the corresponding insertion holes; at least one of the plug terminals having a L-type contact piece and a mounting part connected with the L-type contact piece; the L-type contact piece having a straight part located in a vertical plane and an extension part being perpendicular to the vertical plane and formed by bending one edge of the straight part; and the extension part being located near the top of the straight part. 
 
     
     
       11. The plug connector as claimed in  claim 10 , wherein the L-type contact piece further has a plug-guiding part formed by bending the top of the straight part along the direction away from the extension part;
 the straight part has at least a wide surface located in the vertical plane, and the extension part is formed by perpendicularly bending one edge of the wide surface; and 
 the mounting part is located in the vertical plane.